20731305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197441}}^1$

素因数の和:197456

約数の個数: 16

約数和(自身を含む): 37908864

約数和(自身を除く): 17177559

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197441, 592323, 987205, 1382087, 2961615, 4146261, 6910435, 20731305]

約数ペア:

[(1, 20731305), (3, 6910435), (5, 4146261), (7, 2961615), (15, 1382087), (21, 987205), (35, 592323), (105, 197441)]